[pro.duc.tive] adj (1612) 1: having the quality or power of producing esp. in abundance "~ fishing waters"
2: effective in bringing about "investigating committees have been ~ of much good --R. K. Carr" 3 a: yielding results, benefits, or profits b: yielding or devoted to the satisfaction of wants or the creation of utilities
4: continuing to be used in the formation of new words or constructions "un- is a ~ prefix"
5: raising mucus or sputum (as from the bronchi) "a ~ cough" -- pro.duc.tive.ly adv -- pro.duc.tive.ness n